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Hosting & Network

cal.sg runs on Google (multi-homed across 2 networks), with DNS by GoDaddy and email via Google Workspace.

Hosting network
Googlemulti-homedAS15169GoogleAS19527
Managed DNS
GoDaddy
Email
Google Workspace
IPv6 (AAAA)
Not enabled
CAA pinning
None

Sits alongside 435,090 other sites on Google. Stable here since we started watching (Oct 27, 2026).

The apex and www are the same hosting — the apex via A records, www via a CNAME to cal.sg.

DNS Records for cal.sg

HostnameTypeTTLPriorityContent
cal.sgTXT0v=spf1 include:_spf.google.com include:spf.mandrillapp.com ~all
cal.sgTXT0d92600d5c8fcdb138f1b6db8cfa277e1
cal.sgTXT0google-site-verification=8eV6BvbzACuY0KLlTMQhWg6xu9jZG9JymOM70EiKYYY
cal.sgNS0ns19.domaincontrol.com
cal.sgNS0ns20.domaincontrol.com
cal.sgA035.213.141.148
cal.sgSOA600ns19.domaincontrol.com dns.jomax.net 2026060500 28800 7200 604800 600
cal.sgMX01aspmx.l.google.com
cal.sgMX05alt1.aspmx.l.google.com
cal.sgMX010aspmx2.googlemail.com
cal.sgMX05alt2.aspmx.l.google.com
cal.sgMX010aspmx3.googlemail.com
www.cal.sgMX010aspmx2.googlemail.com
www.cal.sgMX05alt1.aspmx.l.google.com
www.cal.sgMX010aspmx3.googlemail.com
www.cal.sgMX05alt2.aspmx.l.google.com
www.cal.sgMX01aspmx.l.google.com
www.cal.sgNS0ns20.domaincontrol.com
www.cal.sgNS0ns19.domaincontrol.com
www.cal.sgCNAME0cal.sg
www.cal.sgA035.213.141.148
www.cal.sgSOA600ns19.domaincontrol.com dns.jomax.net 2026060500 28800 7200 604800 600
www.cal.sgTXT0google-site-verification=8eV6BvbzACuY0KLlTMQhWg6xu9jZG9JymOM70EiKYYY
www.cal.sgTXT0d92600d5c8fcdb138f1b6db8cfa277e1
www.cal.sgTXT0v=spf1 include:_spf.google.com include:spf.mandrillapp.com ~all

Get alerted the moment cal.sg's DNS changes

This page is today's snapshot. Turn on monitoring and we'll watch cal.sg continuously, notifying you the moment anything moves across all three signals:

DNS monitor showing the hosting provider, current A, MX, NS, and TXT records, and a history of MX and TXT changes

Uptime

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DNS changes

We watch NS, MX, CAA, CNAME, TXT and A/AAAA records, and identify the host, network, and ASN behind them, so a real migration or hijack stands out from routine noise.

TLS certificate

We warn you 30, 14, 7, and 1 days before it expires, and flag it if the issuing authority changes or the certificate is unexpectedly replaced.

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Answers use the live DNS records shown on this page. AI-generated — double-check anything important.

About DNS Records

DNS (Domain Name System) records are instructions that provide information about a domain, including its IP addresses, mail servers, and other services. Common record types include:

  • SOA (Start of Authority) - Contains administrative information about the zone
  • NS (Nameserver) - Specifies authoritative nameservers for the domain
  • A (Address) - Maps a domain to an IPv4 address
  • AAAA - Maps a domain to an IPv6 address
  • CNAME (Canonical Name) - Creates an alias pointing to another domain
  • MX (Mail Exchange) - Specifies mail servers for the domain